🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.03

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.53 AU - 0.59 AU

Year: 271 Days

Day: 33.4 Hours

Environment

Temp: -113 °C

Axial Tilt: 33.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,676,314 km

• M1: 164,408 km (0.083 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.47 AU - 0.73 AU

Year: 300 Days

Day: 27.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.8

Radius: 9.2

Gravity: 8.26 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.04 AU - 1.14 AU

Year: 735 Days

Day: 11.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,676,314 km

• M1: 115,041 km (0.038 R)
• M2: 598,391 km (0.107 R)
• M3: 906,264 km (0.073 R)
• M4: 1,235,230 km (0.111 R)
• M5: 2,182,633 km (0.111 R)
• M6: 3,525,723 km (0.102 R)
• M7: 4,668,351 km (0.076 R)
• M8: 5,188,503 km (0.079 R)
• M9: 5,981,521 km (0.113 R)
• M10: 6,983,977 km (0.11 R)
• M11: 7,688,732 km (0.077 R)
• M12: 8,192,428 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.7

Radius: 9.6

Gravity: 7.2 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.36 AU - 2.6 AU

Year: 2522 Days

Day: 9.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 79,676,314 km

• M1: 119,379 km (0.082 R)
• M2: 536,757 km (0.101 R)
• M3: 912,248 km (0.071 R)
• M4: 1,891,366 km (0.058 R)
• M5: 2,857,170 km (0.09 R)
• M6: 4,495,266 km (0.108 R)
• M7: 5,357,549 km (0.082 R)
• M8: 5,879,346 km (0.089 R)
• M9: 6,909,626 km (0.115 R)
• M10: 7,711,770 km (0.073 R)
• M11: 8,508,678 km (0.119 R)
• M12: 9,254,423 km (0.091 R)
• M13: 9,823,643 km (0.1 R)
• M14: 10,491,897 km (0.079 R)
• M15: 11,110,933 km (0.11 R)
• M16: 11,510,210 km (0.118 R)
• M17: 11,836,333 km (0.094 R)
• M18: 12,464,644 km (0.054 R)
• M19: 13,159,227 km (0.099 R)
• M20: 14,063,397 km (0.097 R)
• M21: 15,545,912 km (0.111 R)
• M22: 16,197,709 km (0.066 R)
• M23: 17,341,984 km (0.106 R)
• M24: 18,207,557 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.9

Radius: 9

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.26 AU - 3.24 AU

Year: 2945 Days

Day: 13.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 79,676,314 km

• M1: 112,049 km (0.047 R)
• M2: 393,742 km (0.109 R)
• M3: 833,410 km (0.1 R)
• M4: 1,139,936 km (0.108 R)
• M5: 1,576,911 km (0.051 R)
• M6: 1,865,934 km (0.099 R)
• M7: 2,248,306 km (0.105 R)
• M8: 5,400,184 km (0.085 R)
• M9: 5,838,207 km (0.063 R)
• M10: 6,563,906 km (0.078 R)
• M11: 8,250,921 km (0.027 R)
• M12: 8,862,627 km (0.041 R)
• M13: 9,348,670 km (0.115 R)
• M14: 10,407,225 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.4

Radius: 13

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.83 AU - 3.31 AU

Year: 3473 Days

Day: 6.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 79,676,314 km

• M1: 162,613 km (0.116 R)
• M2: 725,101 km (0.075 R)
• M3: 1,278,164 km (0.085 R)
• M4: 1,746,854 km (0.11 R)
• M5: 2,463,279 km (0.119 R)
• M6: 3,735,908 km (0.082 R)
• M7: 4,979,814 km (0.05 R)
• M8: 6,337,863 km (0.11 R)
• M9: 7,500,837 km (0.119 R)
• M10: 7,963,394 km (0.107 R)
• M11: 8,445,249 km (0.115 R)
• M12: 9,241,708 km (0.043 R)
• M13: 10,087,534 km (0.07 R)
• M14: 10,529,596 km (0.056 R)
• M15: 12,157,071 km (0.081 R)
• M16: 12,658,074 km (0.066 R)
• M17: 15,584,657 km (0.061 R)
• M18: 17,577,301 km (0.089 R)
• M19: 18,815,223 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.9

Radius: 8.5

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 3.2 AU - 3.82 AU

Year: 4246 Days

Day: 12.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 79,676,314 km

• M1: 105,766 km (0.076 R)
• M2: 419,772 km (0.072 R)
• M3: 845,677 km (0.089 R)
• M4: 1,609,673 km (0.104 R)
• M5: 2,869,437 km (0.073 R)
• M6: 3,330,198 km (0.09 R)
• M7: 3,683,249 km (0.095 R)
• M8: 4,848,916 km (0.118 R)
• M9: 5,528,988 km (0.087 R)
• M10: 8,017,847 km (0.081 R)
• M11: 8,932,489 km (0.095 R)
• M12: 9,469,844 km (0.067 R)
• M13: 11,211,912 km (0.079 R)
• M14: 12,796,153 km (0.082 R)
• M15: 13,157,432 km (0.086 R)
• M16: 19,844,457 km (0.041 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 848.8

Radius: 14.6

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 5.74 AU - 5.96 AU

Year: 9136 Days

Day: 12.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 79,676,314 km

• M1: 181,612 km (0.084 R)
• M2: 674,986 km (0.101 R)
• M3: 1,408,763 km (0.105 R)
• M4: 2,216,741 km (0.109 R)
• M5: 2,748,711 km (0.087 R)
• M6: 4,408,500 km (0.073 R)
• M7: 4,943,761 km (0.111 R)
• M8: 6,549,993 km (0.11 R)
• M9: 8,437,320 km (0.081 R)
• M10: 9,219,418 km (0.045 R)
• M11: 9,849,673 km (0.063 R)
• M12: 11,746,724 km (0.034 R)
• M13: 16,045,868 km (0.052 R)
• M14: 19,356,618 km (0.038 R)
• M15: 19,989,567 km (0.107 R)
• M16: 23,098,659 km (0.026 R)
• M17: 25,186,298 km (0.117 R)
• M18: 27,003,463 km (0.102 R)
• M19: 27,894,169 km (0.115 R)
• M20: 33,316,044 km (0.06 R)
• M21: 38,278,505 km (0.117 R)
• M22: 38,900,383 km (0.058 R)
• M23: 47,609,522 km (0.101 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 392.1

Radius: 4.1

Gravity: 23.33 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 6.67 AU - 8.45 AU

Year: 13421 Days

Day: 22.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 79,676,314 km

• M1: 51,013 km (0.106 R)
• M2: 201,508 km (0.077 R)
• M3: 736,620 km (0.087 R)
• M4: 1,218,624 km (0.082 R)
• M5: 1,534,276 km (0.107 R)
• M6: 3,978,107 km (0.041 R)
• M7: 4,637,684 km (0.049 R)
• M8: 4,852,207 km (0.117 R)
• M9: 5,009,434 km (0.074 R)
• M10: 5,569,678 km (0.08 R)
• M11: 6,280,867 km (0.087 R)
• M12: 7,500,089 km (0.117 R)
• M13: 9,735,530 km (0.072 R)
• M14: 9,885,278 km (0.088 R)
• M15: 10,447,616 km (0.098 R)
• M16: 10,977,043 km (0.11 R)
• M17: 14,276,723 km (0.116 R)
• M18: 14,862,100 km (0.028 R)
• M19: 15,060,766 km (0.067 R)
• M20: 16,714,420 km (0.058 R)
• M21: 19,024,361 km (0.036 R)
• M22: 20,869,501 km (0.111 R)
• M23: 24,082,714 km (0.075 R)
• M24: 28,620,017 km (0.096 R)
• M25: 31,467,912 km (0.098 R)
• M26: 31,905,336 km (0.114 R)
• M27: 34,847,328 km (0.099 R)
• M28: 36,624,401 km (0.104 R)
• M29: 37,473,967 km (0.114 R)
• M30: 38,585,480 km (0.045 R)
• M31: 40,101,355 km (0.089 R)
• M32: 44,748,912 km (0.103 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 661.3

Radius: 6.9

Gravity: 13.89 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 9.77 AU - 11.13 AU

Year: 21812 Days

Day: 16 Hours

Environment

Temp: -230 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 79,676,314 km

• M1: 86,019 km (0.049 R)
• M2: 304,132 km (0.087 R)
• M3: 589,715 km (0.087 R)
• M4: 1,213,837 km (0.091 R)
• M5: 1,652,458 km (0.047 R)
• M6: 2,087,788 km (0.062 R)
• M7: 3,186,584 km (0.087 R)
• M8: 3,440,153 km (0.097 R)
• M9: 4,487,637 km (0.076 R)
• M10: 5,179,677 km (0.111 R)
• M11: 5,898,644 km (0.107 R)
• M12: 7,146,739 km (0.091 R)
• M13: 7,782,380 km (0.11 R)
• M14: 9,449,499 km (0.106 R)
• M15: 11,406,538 km (0.057 R)
• M16: 12,549,017 km (0.108 R)
• M17: 13,112,104 km (0.053 R)
• M18: 13,327,674 km (0.104 R)
• M19: 15,216,647 km (0.089 R)
• M20: 15,534,692 km (0.097 R)
• M21: 16,266,375 km (0.119 R)
• M22: 16,515,306 km (0.057 R)
• M23: 18,419,238 km (0.086 R)
• M24: 20,755,059 km (0.076 R)
• M25: 23,386,336 km (0.096 R)
• M26: 23,703,633 km (0.033 R)
• M27: 27,268,550 km (0.101 R)
• M28: 31,175,299 km (0.098 R)
• M29: 34,203,160 km (0.062 R)
• M30: 40,531,299 km (0.047 R)
• M31: 41,142,556 km (0.046 R)
• M32: 42,070,960 km (0.112 R)
• M33: 47,259,463 km (0.043 R)
• M34: 48,448,617 km (0.09 R)
• M35: 49,137,066 km (0.1 R)
• M36: 58,689,489 km (0.036 R)
• M37: 60,459,231 km (0.101 R)
• M38: 66,403,652 km (0.096 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 147 - 11,405 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit